70mm Circular Soffit Ventilator G700 – Blue/Black (matches anthracite grey)

The G700 is a versatile circular soffit ventilator designed to provide retrofitted or pre-installed roofline ventilation where traditional flat soffit boards are specified. Manufactured in the UK by Manthorpe via high-grade injection moulding, this premium blue/black (matches anthracite grey) profile features a standard 70mm barrel diameter engineered to pop directly into freshly drilled or existing soffit spaces. Offering a highly adaptable venting solution, each individual unit provides 2,150mm² of free airflow, allowing installers to easily calculate layout configurations to satisfy distinct UK Building Regulations, NHBC standards, and British Compliance guidelines for standard or enhanced roof space air circulation.

To maintain an optimal balance between structural protection and consistent airflow performance, the concentric passage is engineered with evenly spaced vent slots. These precision openings are custom-dimensioned to permanently prohibit large nesting insects and garden pests from penetrating the roof void, yet they remain wide enough to actively resist blockages from wet paint, general airborne debris, or trapped water droplets. Moulded from UV-stabilised, high-grade polypropylene, the G700-GO features an ultra-low profile outer flange that sits neatly flush against wood or uPVC soffits, delivering a rot-proof trade finish that matches Golden Oak finishes seamlessly without ever warping, splitting, or flaking.

Key Features

2,150mm² Free Airflow Per Unit: Offers localised high-volume airflow that can be spaced precisely to achieve 10,000mm²/M or 25,000mm²/M continuous equivalents.

Flexible Before-or-After Fit: Smart architectural design allows the vents to be installed quickly either into loose boards on the bench or retrofitted into existing rooflines.

Anti-Clog Vent Geometry: Concentric slot spacing allows unhindered air circulation while actively resisting blockages from paint coats and water droplets.

Integral Pest Protection: Finely tuned profile slots block entrance paths against nesting birds and large insects trying to burrow into the eaves.

Simple Friction Push-Fit: Features small integrated ribbed retaining ridges on the barrel to ensure a secure, permanent mechanical grip inside the soffit board hole.

Please Note: On-screen colours are for illustration purposes only. Due to variations in digital displays, screen settings, and lighting, actual product colours may vary slightly. We recommend ordering a sample or visiting a branch to view physical colour swatches prior to installation.

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